Home / 9,170.77-12,642.73-6,517.21

Finding the Fourth Proportional to 9,170.77, 12,642.73 and 6,517.21

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Solution

The fourth proportional to 9,170.77, 12,642.73 and 6,517.21 is: 8,984.56

Step by Step Solution

  1. Step 1: Write the proportion equation
    9,170.77 : 12,642.73 = 6,517.21 : x
  2. Step 2: Convert to fraction form
    9,170.77/12,642.73 = 6,517.21/x
  3. Step 3: Cross multiply
    9,170.77x = 12,642.73 × 6,517.21
  4. Step 4: Simplify right side
    9,170.77x = 82,395,326.38
  5. Step 5: Solve for x
    x = 82,395,326.38/9,170.77
  6. Step 6: Final answer
    x = 8,984.56

Related Problems

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Half scale
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Double scale
Find fourth proportional to 9,171.77, 12,644.11 and 6,518.21
Similar ratio
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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.